One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,6)(4,8)(5,7)(9,10)(11,13)(12,14)(15,16)(17,18,22,26)(19,24,28,39)(20,25,33,40)(21,23,34,27)(29,38,42,48)(30,35,43,37)(31,36,32,41)(44,47,45,46)(1,3,5,4)(2,6,7,8)(9,10)(11,15)(12,14)(13,16)(18,23)(19,28)(20,31)(21,34)(24,37)(26,27)(29,44)(32,33)(35,39)(36,41)(38,48)(42,45)(2,7)(6,8)(9,11,12,16)(10,13,14,15)(17,19)(18,24)(20,29)(21,30)(22,28)(23,35)(25,38)(26,39)(27,37)(31,45)(32,44)(33,42)(34,43)(36,46)(40,48)(41,47)(11,16)(13,15)(17,20,22,33)(18,25,26,40)(19,29,28,42)(21,31,34,32)(23,36,27,41)(24,38,39,48)(30,45,43,44)(35,46,37,47)(1,4,5,3)(2,8,7,6)(10,14)(13,15)(18,26)(19,28)(23,27)(25,40)(29,42)(30,43)(36,41)(44,45)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.